.page-products {
  --prod-cut: 16px;
  --prod-soft: #081915;
  background:
    radial-gradient(110% 62% at 84% -8%, rgba(198, 255, 61, 0.09), transparent 60%),
    radial-gradient(80% 46% at 6% 2%, rgba(255, 138, 61, 0.06), transparent 62%),
    var(--ink);
  color: var(--paper);
  padding-bottom: 56px;
}

.page-products h1,
.page-products h2,
.page-products h3 {
  font-family: var(--font-serif);
  font-weight: 700;
  color: var(--paper);
  letter-spacing: -0.01em;
}

.page-products h1 {
  font-size: clamp(32px, 7.4vw, 60px);
  line-height: 1.08;
  margin: 14px 0 0;
}

.page-products h2 {
  font-size: clamp(24px, 4.4vw, 36px);
  line-height: 1.22;
  margin: 10px 0 0;
}

.page-products h3 {
  font-size: 17px;
  line-height: 1.4;
  margin: 0 0 6px;
}

.page-products a {
  color: var(--lime);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

/* ---------- 首屏 ---------- */
.page-products .prod-hero {
  padding: 26px 0 44px;
}

.page-products .prod-hero__grid {
  display: grid;
  gap: 26px;
  align-items: center;
}

.page-products .prod-hero__lead {
  margin: 18px 0 0;
  max-width: 46ch;
  font-size: 16px;
  line-height: 1.75;
  color: var(--paper);
}

.page-products .prod-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}

.page-products .prod-hero__visual {
  margin: 0;
  border: 1px solid var(--line);
  background: var(--ink-2);
  overflow: hidden;
  clip-path: polygon(0 0, calc(100% - var(--cut)) 0, 100% var(--cut), 100% 100%, 0 100%);
}

.page-products .prod-hero__visual img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

/* ---------- 区块骨架 ---------- */
.page-products .prod-sec {
  padding: 44px 0;
  border-top: 1px solid var(--line);
}

.page-products .prod-sec__head {
  max-width: 62ch;
}

.page-products .prod-sec__lead {
  margin: 14px 0 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--muted);
}

/* ---------- 编号横向条 ---------- */
.page-products .key-strip {
  display: flex;
  gap: 8px;
  margin: 26px 0 22px;
  padding: 0 0 12px;
  list-style: none;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
  scrollbar-color: var(--line) transparent;
}

.page-products .key-strip li {
  flex: 0 0 auto;
}

.page-products .key-strip a {
  display: inline-flex;
  align-items: baseline;
  gap: 7px;
  padding: 9px 13px;
  border: 1px solid var(--line);
  background: var(--ink-2);
  color: var(--paper);
  font-family: var(--font-narrow);
  font-size: 13px;
  letter-spacing: 0.02em;
  text-decoration: none;
  white-space: nowrap;
  clip-path: polygon(0 0, calc(100% - 10px) 0, 100% 10px, 100% 100%, 0 100%);
  transition: border-color 160ms var(--ease), color 160ms var(--ease), background-color 160ms var(--ease);
}

.page-products .key-strip a span {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--lime);
}

.page-products .key-strip a:hover,
.page-products .key-strip a:focus-visible {
  border-color: var(--lime);
  background: var(--prod-soft);
  color: var(--paper);
}

/* ---------- 可展开键位分组 ---------- */
.page-products .prod-groups {
  margin-top: 4px;
}

.page-products .prod-group {
  margin: 0 0 12px;
  border: 1px solid var(--line);
  background: linear-gradient(180deg, var(--ink-2), var(--prod-soft));
  clip-path: polygon(0 0, calc(100% - var(--cut)) 0, 100% var(--cut), 100% 100%, 0 100%);
}

.page-products .prod-group > summary {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 12px;
  padding: 15px 16px;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-serif);
  font-size: 17px;
  font-weight: 700;
  color: var(--paper);
  transition: background-color 160ms var(--ease);
}

.page-products .prod-group > summary::-webkit-details-marker {
  display: none;
}

.page-products .prod-group > summary:hover,
.page-products .prod-group > summary:focus-visible {
  background: rgba(198, 255, 61, 0.06);
}

.page-products .prod-group__no {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--lime);
  padding: 3px 7px;
  border: 1px solid rgba(198, 255, 61, 0.34);
  white-space: nowrap;
}

.page-products .prod-group__name {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px;
  min-width: 0;
}

.page-products .prod-group__hint {
  font-family: var(--font-narrow);
  font-size: 12px;
  font-weight: 400;
  letter-spacing: 0.05em;
  color: var(--muted);
}

.page-products .prod-group__icon {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 16px;
  line-height: 1;
  color: var(--lime);
  transition: transform 180ms var(--ease);
}

.page-products .prod-group[open] .prod-group__icon {
  transform: rotate(45deg);
}

.page-products .prod-rows {
  list-style: none;
  margin: 0;
  padding: 0 16px 10px;
}

.page-products .prod-row {
  display: grid;
  gap: 5px;
  padding: 13px 0 13px 12px;
  border-top: 1px solid var(--line);
  border-left: 2px solid transparent;
  transition: border-left-color 160ms var(--ease), background-color 160ms var(--ease);
}

.page-products .prod-row:hover {
  border-left-color: var(--lime);
  background: rgba(198, 255, 61, 0.04);
}

.page-products .prod-row__key {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--lime);
}

.page-products .prod-row__action {
  font-size: 15px;
  line-height: 1.6;
  color: var(--paper);
}

.page-products .prod-row__out {
  font-size: 14px;
  line-height: 1.65;
  color: var(--muted);
}

/* ---------- 三栏对照 ---------- */
.page-products .prod-compare__grid {
  display: grid;
  gap: 22px;
  margin-top: 26px;
}

.page-products .prod-compare__figure {
  margin: 0;
  border: 1px solid var(--line);
  background: var(--ink-2);
  overflow: hidden;
  clip-path: polygon(0 0, calc(100% - var(--prod-cut)) 0, 100% var(--prod-cut), 100% 100%, 0 100%);
}

.page-products .prod-compare__figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-products .prod-compare__figure figcaption,
.page-products .prod-sub__figure figcaption {
  padding: 12px 14px;
  font-family: var(--font-narrow);
  font-size: 12px;
  line-height: 1.6;
  letter-spacing: 0.03em;
  color: var(--muted);
  border-top: 1px solid var(--line);
}

.page-products .prod-table-wrap {
  border: 1px solid var(--line);
  background: var(--prod-soft);
  overflow-x: auto;
}

.page-products .prod-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
  color: var(--paper);
}

.page-products .prod-table th,
.page-products .prod-table td {
  text-align: left;
  padding: 12px 12px;
  vertical-align: top;
  border-bottom: 1px solid var(--line);
  line-height: 1.6;
}

.page-products .prod-table thead th {
  font-family: var(--font-narrow);
  font-size: 12px;
  font-weight: 400;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  border-bottom: 1px solid var(--lime);
  white-space: nowrap;
}

.page-products .prod-table td:first-child {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--lime);
  white-space: nowrap;
  width: 64px;
}

.page-products .prod-table tbody tr {
  transition: background-color 160ms var(--ease);
}

.page-products .prod-table tbody tr:hover,
.page-products .prod-table tbody tr:focus-within {
  background: rgba(198, 255, 61, 0.07);
}

.page-products .prod-table tbody tr:last-child td {
  border-bottom: 0;
}

/* ---------- 操作路径 ---------- */
.page-products .prod-path__grid {
  display: grid;
  gap: 26px;
}

.page-products .prod-steps {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-products .prod-steps > li {
  display: grid;
  gap: 6px;
  padding: 15px 0 15px 14px;
  border-left: 2px solid var(--line);
  transition: border-left-color 160ms var(--ease);
}

.page-products .prod-steps > li:hover {
  border-left-color: var(--lime);
}

.page-products .prod-steps__no {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--lime);
}

.page-products .prod-steps p {
  margin: 0;
  font-size: 15px;
  line-height: 1.72;
  color: var(--muted);
}

.page-products .prod-steps--tight > li {
  padding-top: 12px;
  padding-bottom: 12px;
}

/* ---------- 订阅切换 ---------- */
.page-products .prod-sub__grid {
  display: grid;
  gap: 26px;
}

.page-products .prod-sub__figure {
  margin: 0;
  border: 1px solid var(--line);
  background: var(--ink-2);
  overflow: hidden;
  clip-path: polygon(0 0, calc(100% - var(--prod-cut)) 0, 100% var(--prod-cut), 100% 100%, 0 100%);
}

.page-products .prod-sub__figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-products .prod-sub__body > p:first-of-type {
  margin: 0;
}

.page-products .prod-sub__body > h2 + p {
  margin: 14px 0 20px;
  font-size: 15px;
  line-height: 1.78;
  color: var(--muted);
  max-width: 54ch;
}

.page-products .prod-sub__more {
  margin: 18px 0 0;
  font-family: var(--font-narrow);
  font-size: 14px;
  letter-spacing: 0.02em;
}

/* ---------- 设备差异 ---------- */
.page-products .prod-device__figure {
  margin: 26px 0 0;
  border: 1px solid var(--line);
  background: var(--ink-2);
  overflow: hidden;
  clip-path: polygon(0 0, calc(100% - var(--prod-cut)) 0, 100% var(--prod-cut), 100% 100%, 0 100%);
}

.page-products .prod-device__figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-products .prod-device__grid {
  display: grid;
  gap: 14px;
  margin-top: 18px;
}

.page-products .prod-device__card {
  padding: 20px 18px 18px;
  border: 1px solid var(--line);
  background: linear-gradient(180deg, var(--ink-2), var(--prod-soft));
  clip-path: polygon(0 0, calc(100% - var(--prod-cut)) 0, 100% var(--prod-cut), 100% 100%, 0 100%);
}

.page-products .prod-device__card header {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px;
  margin-bottom: 12px;
}

.page-products .prod-device__card h3 {
  margin: 0;
  font-size: 18px;
}

.page-products .prod-device__card ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-products .prod-device__card li {
  position: relative;
  padding: 9px 0 9px 16px;
  font-size: 14px;
  line-height: 1.65;
  color: var(--muted);
  border-top: 1px solid var(--line);
}

.page-products .prod-device__card li:first-child {
  border-top: 0;
}

.page-products .prod-device__card li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 17px;
  width: 6px;
  height: 2px;
  background: var(--lime);
}

/* ---------- 收尾 ---------- */
.page-products .prod-cta {
  border-bottom: 0;
  padding-bottom: 8px;
}

.page-products .prod-cta__box {
  display: grid;
  gap: 22px;
  padding: 26px 18px;
  border: 1px solid var(--line);
  background:
    radial-gradient(90% 120% at 88% 0%, rgba(255, 138, 61, 0.12), transparent 62%),
    linear-gradient(180deg, var(--ink-2), var(--prod-soft));
  clip-path: polygon(0 0, calc(100% - var(--cut)) 0, 100% var(--cut), 100% 100%, 0 100%);
}

.page-products .prod-cta__copy p {
  margin: 14px 0 0;
  max-width: 48ch;
  font-size: 15px;
  line-height: 1.78;
  color: var(--muted);
}

.page-products .prod-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

.page-products .prod-cta__figure {
  margin: 0;
  border: 1px solid var(--line);
  overflow: hidden;
  clip-path: polygon(0 0, calc(100% - var(--prod-cut)) 0, 100% var(--prod-cut), 100% 100%, 0 100%);
}

.page-products .prod-cta__figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-products {
    padding-bottom: 72px;
  }

  .page-products .prod-sec {
    padding: 56px 0;
  }

  .page-products .prod-hero {
    padding: 36px 0 54px;
  }

  .page-products .prod-row {
    grid-template-columns: 58px minmax(0, 1.15fr) minmax(0, 1fr);
    gap: 16px;
    align-items: start;
  }

  .page-products .prod-row__key {
    padding-top: 2px;
  }

  .page-products .prod-device__grid {
    grid-template-columns: 1fr 1fr;
    gap: 16px;
  }

  .page-products .prod-cta__box {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr);
    align-items: center;
    gap: 28px;
    padding: 32px 26px;
  }
}

@media (min-width: 1024px) {
  .page-products .prod-hero__grid {
    grid-template-columns: minmax(0, 1.04fr) minmax(0, 0.96fr);
    gap: 48px;
  }

  .page-products .prod-hero__lead {
    font-size: 17px;
  }

  .page-products .prod-compare__grid {
    grid-template-columns: minmax(0, 0.82fr) minmax(0, 1.18fr);
    gap: 28px;
    align-items: start;
  }

  .page-products .prod-path__grid {
    grid-template-columns: minmax(0, 0.86fr) minmax(0, 1.14fr);
    gap: 48px;
    align-items: start;
  }

  .page-products .prod-path__head {
    position: sticky;
    top: 96px;
  }

  .page-products .prod-sub__grid {
    grid-template-columns: minmax(0, 0.78fr) minmax(0, 1.22fr);
    gap: 48px;
    align-items: start;
  }

  .page-products .prod-group > summary {
    font-size: 18px;
    padding: 17px 20px;
  }

  .page-products .prod-rows {
    padding: 0 20px 12px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .prod-group__icon,
  .page-products .prod-row,
  .page-products .prod-steps > li,
  .page-products .prod-table tbody tr,
  .page-products .key-strip a,
  .page-products .prod-group > summary {
    transition: none;
  }

  .page-products .prod-group[open] .prod-group__icon {
    transform: none;
  }
}